What is the cheapest airline that flies from United States to Northern Ireland?

Aer Lingus and KLM are the most popular carriers operating from United States to Northern Ireland

What airlines fly to Northern Ireland?

British Airways, Delta and American Airlines are the top three most popular airlines that fly to Northern Ireland from United States according to our data. British Airways is the first choice among our users, with 93% of people opting to fly with this airline when traveling to Northern Ireland. Keep in mind that there are 3 different airlines that fly to Northern Ireland on a routine basis, so you have a few additional options to choose from.

How long is the flight from United States to Northern Ireland?

Flight times vary depending on what airport in United States you fly out of and what airport in Northern Ireland you fly into. For example, flying from Boston to Belfast Intl Airport takes 10h 05m on average. On the other hand, flying from Miami to Belfast Intl Airport takes 12h 30m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from United States to Northern Ireland?

Prices for flights from United States to Northern Ireland were last updated today.

How many operators does momondo search for flights from United States to Northern Ireland?

As of July 2026, there are 2 operators available to choose from for flights from United States to Northern Ireland.

How old do you have to be to fly from United States to Northern Ireland?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$251 Cheap Flights from the United States to Northern Ireland in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Northern Ireland

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United States to Northern Ireland

Enter your travel dates to find the best prices.

6:20 pm - 2:15 pm

JFK

BFS

14h 55m

1 stop

8:15 pm - 3:55 pm

BFS

JFK

24h 40m

1 stop

$570Multiple Airlines

Fri, Oct 16 - Wed, Oct 21

6:20 pm - 6:40 pm

JFK

BHD

19h 20m

1 stop

7:00 am - 3:55 pm

BHD

JFK

13h 55m

1 stop

$592Multiple Airlines

Thu, Oct 1 - Sun, Oct 4

6:20 pm - 10:00 am

JFK

BHD

10h 40m

1 stop

2:20 pm - 3:55 pm

BHD

JFK

30h 35m

1 stop

$597Multiple Airlines

Fri, Oct 16 - Wed, Oct 21

11:10 pm - 11:20 pm

JFK

BFS

19h 10m

2 stops

8:15 pm - 10:25 pm

BFS

JFK

31h 10m

3 stops

$606Multiple Airlines

Mon, Aug 24 - Tue, Sep 8

8:30 pm - 11:20 pm

JFK

BFS

21h 50m

2 stops

8:15 pm - 10:25 pm

BFS

JFK

31h 10m

3 stops

$614Multiple Airlines

Mon, Aug 24 - Tue, Sep 8

9:20 pm - 4:50 pm

MSP

BHD

13h 30m

1 stop

5:20 pm - 12:42 pm

BHD

MSP

25h 22m

1 stop

$924KLM

Wed, Nov 25 - Wed, Dec 2

9:20 pm - 4:50 pm

MSP

BHD

13h 30m

1 stop

5:20 pm - 12:42 pm

BHD

MSP

25h 22m

1 stop

$925KLM

Wed, Nov 25 - Wed, Dec 2

3:41 pm - 4:35 pm

MSP

BHD

18h 54m

2 stops

5:40 pm - 7:33 pm

BHD

MSP

31h 53m

2 stops

$927British Airways

Wed, Nov 25 - Wed, Dec 2

3:41 pm - 2:15 pm

MSP

BHD

16h 34m

2 stops

5:40 pm - 7:33 pm

BHD

MSP

31h 53m

2 stops

$928British Airways

Wed, Nov 25 - Wed, Dec 2

3:44 pm - 2:15 pm

MSP

BHD

17h 31m

2 stops

9:15 am - 12:03 am

BHD

MSP

20h 48m

2 stops

$969American Airlines

Mon, Oct 26 - Sat, Nov 7

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British Airways flights from United States to Northern Ireland

Our best British Airways deals on United States to Northern Ireland flight tickets

British Airways

Oct 21

JFK8:55 pmNew York John F Kennedy Intl

10h 05m

1 stop

BHD12:00 pmBelfast City

Oct 28

BHD3:40 pmBelfast City

11h 25m

1 stop

JFK11:05 pmNew York John F Kennedy Intl

$902

British Airways

Oct 21

JFK3:30 pmNew York John F Kennedy Intl

17h 05m

2 stops

BHD1:35 pmBelfast City

Oct 28

BHD11:25 amBelfast City

10h 55m

1 stop

JFK6:20 pmNew York John F Kennedy Intl

$906

British Airways

Oct 21

JFK3:30 pmNew York John F Kennedy Intl

17h 05m

2 stops

BHD1:35 pmBelfast City

Oct 28

BHD12:25 pmBelfast City

23h 03m

2 stops

JFK7:28 amNew York John F Kennedy Intl

$916

KLM flights from United States to Northern Ireland

Our best KLM deals on United States to Northern Ireland flight tickets

KLM

Nov 25

MSP9:20 pmMinneapolis St Paul

13h 30m

1 stop

BHD4:50 pmBelfast City

Dec 2

BHD5:20 pmBelfast City

25h 22m

1 stop

MSP12:42 pmMinneapolis St Paul

$924

KLM

Nov 25

MSP9:20 pmMinneapolis St Paul

13h 30m

1 stop

BHD4:50 pmBelfast City

Dec 2

BHD5:20 pmBelfast City

25h 22m

1 stop

MSP12:42 pmMinneapolis St Paul

$925

KLM

Nov 25

MSP9:20 pmMinneapolis St Paul

13h 30m

1 stop

BHD4:50 pmBelfast City

Dec 2

BHD5:20 pmBelfast City

25h 22m

1 stop

MSP12:42 pmMinneapolis St Paul

$926

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Fri 10/16

6:20 pm-2:15 pm

1 stop14h 55m

Belfast Intl

Wed 10/21

8:15 pm-3:55 pm

1 stop24h 40m

$570

Quickest round-trip

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Thu 10/1

6:20 pm-6:40 pm

1 stop19h 20m

Belfast City

Sun 10/4

7:00 am-3:55 pm

1 stop13h 55m

$592

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Fri 10/16

6:20 pm-10:00 am

1 stop10h 40m

Belfast City

Wed 10/21

2:20 pm-3:55 pm

1 stop30h 35m

$597

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 8/24

11:10 pm-11:20 pm

2 stops19h 10m

Belfast Intl

Tue 9/8

8:15 pm-10:25 pm

3 stops31h 10m

$606

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 8/24

8:30 pm-11:20 pm

2 stops21h 50m

Belfast Intl

Tue 9/8

8:15 pm-10:25 pm

3 stops31h 10m

$614

MinneapolisBelfast

MSP - BHD

MSPBHD

Minneapolis St Paul

Wed 11/25

9:20 pm-4:50 pm

1 stop13h 30m

Belfast City

Wed 12/2

5:20 pm-12:42 pm

1 stop25h 22m

$924

MinneapolisBelfast

MSP - BHD

MSPBHD

Minneapolis St Paul

Wed 11/25

9:20 pm-4:50 pm

1 stop13h 30m

Belfast City

Wed 12/2

5:20 pm-12:42 pm

1 stop25h 22m

$925

MinneapolisBelfast

MSP - BHD

MSPBHD

Minneapolis St Paul

Wed 11/25

3:41 pm-4:35 pm

2 stops18h 54m

Belfast City

Wed 12/2

5:40 pm-7:33 pm

2 stops31h 53m

$927

MinneapolisBelfast

MSP - BHD

MSPBHD

Minneapolis St Paul

Wed 11/25

3:41 pm-2:15 pm

2 stops16h 34m

Belfast City

Wed 12/2

5:40 pm-7:33 pm

2 stops31h 53m

$928

MinneapolisBelfast

MSP - BHD

MSPBHD

Minneapolis St Paul

Mon 10/26

3:44 pm-2:15 pm

2 stops17h 31m

Belfast City

Sat 11/7

9:15 am-12:03 am

2 stops20h 48m

$969

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Northern Ireland?

The cheapest month to fly to Northern Ireland from United States is in September. Flight prices, which tend to average around $608, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Northern Ireland from United States during March instead. Flights to Northern Ireland in March, while not as cheap as those in September, still average around $641.

Can stopping save me money on United States to Northern Ireland flights?

You could potentially save up to 19% on your flight if you consider stops on a United States to Northern Ireland flight.

Cheap United States to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Northern Ireland

Fastest flight time	9h 55m
Direct flights	None

The fastest flight from United States to Northern Ireland takes 9h 55m

There are no direct flights from United States to Northern Ireland. There are no popular flight routes from United States to Northern Ireland.

Search flight deals

Frequently asked questions about flying from the United States to Northern Ireland

When did momondo last update prices for flights from United States to Northern Ireland?
Prices for flights from United States to Northern Ireland were last updated today.
How many operators does momondo search for flights from United States to Northern Ireland?
As of July 2026, there are 2 operators available to choose from for flights from United States to Northern Ireland.
How old do you have to be to fly from United States to Northern Ireland?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from United States to Northern Ireland

Compare and see reviews for airlines that fly from United States to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $538	Free Cancellation	Rating 6.7 8,126 reviews	Search British Airways flights
American Airlines	PriceFrom $541	Free Cancellation	Rating 7.1 11,823 reviews	Search American Airlines flights
Delta	PriceFrom $973	Free Cancellation	Rating 7.8 8,481 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Northern Ireland?

Finding the right flight to Northern Ireland from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

Can I find flights from United States to Northern Ireland with flexible booking policies on momondo?

Flights from United States to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United States to Northern Ireland?

Once you have performed a search for United States to Northern Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United States to Northern Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of United States to Northern Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.